There is no issue here, the LED simply does as you tell it. When setting up the DrDAQ in Picolog there is a drop-down box that allows you to set the behaviour of the LED. It by default is constantly on unless you change this setting.

When i got my DrDAQ i installed the software from the CD, and tested the unit, the LED on on alarm worked fine.
Now i have installed the latest software and now i cant get the LED to work it's always on.

The drop down is working but the LED is always on nomather what i do, the DO is working as it should.

The software is 5.12.7

There is a nother huge problem in 5.12.7 and that is the alarm function for at least pH, its not longer possible to use decimals (e.g 6.6) as soon as you set some figure with decimal the software crashes.
This was the real issue in the installation problem i wrote in another thread.

Is it possible to be a registered member of this forum? i have registered but i cant login and i have not recieved the mail i was told in the registration process? I registerd as NE and now i cant use that for username anymore.